“Effects of Hexavalent Chromium (Cr+6) on Gold Fish (Carassius Auratus L.) ”. Journal of Madenat Alelem 3, no. 1 (June 30, 2011): 79–93. Accessed May 1, 2026. https://journal.mauc.edu.iq/index.php/JMAUC/article/view/268.